Related Clues:

• Coral creation
• Circular coral reef
• Castaway's home, maybe
• Lighthouse site, perhaps
• Bikini or Johnson, e.g.
• "Survivor" place, often
• Enewetak or Kwajalein
• ___ au Haut, ME
• Archipelago member
• Castaway's refuge
• Lagoon locale
• Ely, e.g.
• Capri or Wight
• Avalon, for one
• "Survivor" locale, maybe